Ripping the frets out of my Warwick...

Naaaah! I'm not that nuts, yet. But I'm gonna rip them out of an Alvarez bass that I have. So far all I know that I'm doing is heating them up with a soldering iron to loosen the glue, and pulling them out. I need to know the best stuff to fill the gaps with when I'm done (it's a rosewood fingerboard), and what I could/should finish the neck with. What did Jaco finish his neck with?

I really like this bass and don't want to destroy it, so any helpful advice or warnings would be appreciated. Thanks.